好紧好湿好爽免费视频,成年免费A级毛片免费看,亚洲成熟丰满熟妇高潮XXXXX,高潮又爽又无遮挡又免费

Castable used in our life now is very wide, is widely used in metallurgy, electric power, cement and other industries, because of the castable construction method is simple, in order to correctly play its performance, so we must use castable used correctly, then we when stored castable what problem should note? Summarize a few methods to help you correctly use the pouring material.

Precautions for storage:

1. The pouring material should be stored in a dry and well-ventilated environment. It is not allowed to directly contact the pouring material with the ground to avoid hygroscopicity of the pouring material.

2. Rainproof measures shall be taken during open storage, and the materials beyond the storage period shall be inspected and tested before use.

Precautions for construction:

1. The construction surface in contact with the castable shall be kept clean, and the size of the placenta and formwork shall meet the design requirements.

2. The placenta and template should be made of materials with dense structure, good strength and smooth surface, and the castable already constructed should not be frozen. In hot weather, cold water mixed castable should be applied.

3. If the refractory castable is stored in the low-temperature warehouse, spray water on the furnace shell and formwork to cool the temperature. During the construction, the environment should be kept clean without dust pollution, and clean tap water should be used.

Whether the castable is correct has a very big impact on the later performance of the characteristics, so we must pay attention to the method of storage and construction considerations, the construction of castable is also very much, we must pay attention to.